Switch mechanism



H. F. KRANTZ.

SWITCH MECHANISM.

APPLICATION FILED omzs. 191?.

Patented Dec. 6, 1921.

7 SHEETS--SNEET H. F. KRANTZ.

SWITCH MECHANISM.

APPLICATION man 0:025. 191?.

Patented Dec. 6, 1921.

I SHEETS-SHEET 2.

m ///A/ /\/a/ au R m BM 5% w E q a? Q Q Q N W v \m E E 3 //////WV// m m u. .\\\iafll m Q3 iii. 9 .3 -lnl 9w mm n a 9. KW Q mm mm bm Q 1%? by p i 1. J, 71 I I I: w m Q N R m N H. F. KRANTZ.

SWITCH MECHANISM- APPLICATIOAN mzo'nmze. 191:.

1,399,495, Patented Dec. 6, 1921 Z SHEETS-SHEET 3- H. F. KRANIZ SWHCH MECHANISM.

APPLICATION FILED DEC.26, F91].

Patented Dec. 6, 1921.

TSHEETS-SHEET 4.

H. F. KRANIZ.

SWITCH MECHANISM. APPLICATION men DEC. 26. x911.

Patented Dec. 6, 1921.

1 SHEETS-$HEET 6.

H. F. KRANTZ.

swncu MECHANISM.

APPLICATION FILED 056.25. I917. 1,399,495a Patented 1m 6, 1921.

I SHEETS-SIIEET I.

INVENTOR UNITED STATES PATENT OFFICE.

HUBERT F. KRANTZ, OF BROOKLYIhL IIEW YORK, ASSIGNOR 'IO KRANTZ MANUFAC- TUBING COMPANY, INC., 01 BROOKLYN, NEW YORK, A CORPORA T10N OF NEW YORK. 5

swrron; .MECHANISM.

Patented Dec. 6, 1921.

-Application filed December 26, 1917. Serial No. 208,797.

To all whom it may comma Be; it .known that -I,-; HUBERT- I KRANTZ, residing at Brooklyn, in the county of Kings and State of-New York, have invented .certain new and useful Improvement-sin Switch Mechanism, of. which ithegfollowingais a specification; v I, Thisinvention relatesto an-improved motor starting-switch.-.:; The objectiof the invention is to provide a motor starting. switch which isaniimprovement. overs-the structure shown and described in ,my': pending applications SerialfNumbers 79,097 and 79,098 filed February 18, A916.

A further object is to providean improved motor. starting switch in which is-employed a single operating handle movable intothree positionsi star,tiug,, .runningfl and dead, and in which the handle, and the parts connected thereto, iwill automatically-move? into the running position after..having'-been moved :a'rom dead. :to tstarting position. A-further objectis'to provide a m-voltage releasefortheimechaiiisml '1 :A- further objectI- -is to;-arrange all of the above mechanism .withinaa-safety container orzpanell box havinganaentrance door totherrwitli meansawherebyithe doorwill 'held against .-being o ned except when the mechanismuis' the ofl".- position.

A further'objeet is-to-arrangea wall or barrier within the box disposed and adapted for carrying certain parts of the mechanism which itis desirable to reach upon opening of the door and for guarding certain parts which are left live when the handle is moved to off position for opening the door.

A further object is to so mount the barrier that it may be readily inserted or removed as required.

A further object is to adapt the barrier to carry certain of the parts of the mechanism so that said parts may be lifted into or out of cooperative relation with the remain ing parts by the act of inserting or removing the barrier.

Other objects and aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed. out in the course of the following de scription of the elements, combinations, arrangements of parts and applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended claims.

in the starting? position.-

In the accompanying drawings which are to bataken as a part of this specification, and in which I have shown merely a preferred form of embodiment of the inven-* bion:

Figure 1 is a vertical transverse sectional view showing the device'constructedjn aceordance with this invention, the section b6111 taken substantially upon the plane of line I Of Fig. 2. :2

Fig. 2 is a horizontal sectional view taken substantially upon the plane of line II of Figs. 1 and 3. l

; Fig. 3 is a front elevational viewpfathe structure shown in Fig-1, the front wall, or cover of the box being omitted. Fig. dis a view similaiyto that;shown in Fig. 3 but not with the barrier removed.- 3

Fig. 5 is a fragmentary sectional view taken substantially upon the plane of line Vof Fig.1. Fig; -6 ,.-is ',;a diagrammatic. view vshowing the movable switch elements of 1. when Fig. 7 is a si ii1 ilar diagrammatic view showing the parts in running position.

Fig. Sis a fragmentary elevational view of the portion of the box cover illustrating a means for. preventing opening of the door except when the operating handle is in the off position. y V y Fig. 9 is a sectional .view taken-upon the plane of line IX of Fig. 8.

Fig. 10 is a view similar to that shown in Fig. 8 but being taken from the reverse side of the box wall. A

Fig. 11 is an enlarged detail view illustrating a modified arrangement of the operating handle.

Fig. 12 is a horizontal sectional view taken substantially upon the plane of line XII of Fi 11.

Fig. 13 is a front elevational view of the box showing the application of a door-locking device in connection with the operating handle of Figs. 11 and 12, and

Fig. 14 is a detail sectional view taken substantially upon the plane of line XIV of Fig. 13.

Referring to the drawings for describing in detail the structure which is illustrated therein, the reference character L indicates a casing or box within which the parts of the device are contained. This may be of any suitable material but is preferably formed rwnws the toggle is made, however, U10 u w Any desired mews may be Pmployerl for Wlll ride on to the roller 10 and press the i iti th and 5H movwmlb;

bladll of Swltcl' 23 l g y "S l he switch 22, bull prclcrnbly the bracket arrangement a full on position is secured 1 m, 23 i id d ith an Mambo 1 49 for switch 23 ahead oi 3witch 22 vithin which theiheel pivot in of the '70 .W lh hubhswilaches ifm Um Pfl f i l oggle' indvrs for this purpose, the pin 50 the-pusl wn lw P -"HZ; 5. v :n raging the opposite unds of lhe slut.

.Tl1e.switch 23 is provided wllh a spring Vhen the operating handle 33 is in the -e' lllfill o tha descri ed f l UHF-position as in Fig. I both switches are thisspr ingmxerting pressure firstpg 'oll'" and Lhehns bars though live, are eF- 7 th i lin d surface 43 and then against the factually jnbtcc-Lcd'bchind the hamlet so that incllneflfllllffilcc 2- (muses will lllllf i ugh the (lo nbe Opened, the bus bars can move downwardly'and l-hus s wing the ow not he reached without first. detaching the ating handle part; way hgnclz toivard tlw pl barrier. lV ith the switches 0H th c0n- 15 position, that istn the luinning" positmmlupt 15 l6 17 and 1819-20 to ether '80 As the handle swings. the pin 37 lhergol with the fuse clips and uses are. all ilczid moves downwardly along than-lot 38 but and maybe handled at will wil'houtlxlangur. doc ot ren h. Lhc lower end wall 47 of Bull. :Lq the Operating handle is'moved down; slol:.. Nola llmhtln: outer and til" the hnncllc wnrdly lxi Fstaru'ngf nosition both switche 20 Enl nd heavier llmn tlm-inncr eucl are moved to on musition as in Fig. 6,15 :mrlthal; this outer and must; b rniflafll b thq lhc starting switc es maltos con tact in pmssure frumlhv. IGllQII 40 m order to moi}: advance of the running nww'tchfZQ, as above the pin 37 rlqwnwurd ly .and. llml'. .fm' llllS crplninqrl', and um firstrush of current from rcusonthcr iqpractically no upwarcl move,- l iabushhrgllrjwithrdflgfli lzhe blfidfes ofthc want of lluzuuber (gull p fllr lmncllu after stn'rtihg'fiiiitiglranglthrqughlhc rpfitb'r feed the roller 40 has rmughpd a.\h'. 1.d ,pnsltlon miirun' lllfifitllpilt trnyh'rslni; any ffthe' fuses, gguiml; film nrfmcp 48 the gnun li lik. tluis :iyilltljng blo i iijg bf the fu sles, 'liyen Mnvenicnh of the rollgzl 40 t'ol;.= wiug ,tlm i fbur thq lj lhtls QllllDjQWlliUlLQQ- lirpye ruu dc hnlulle intufrnnniug pngl tinn in (if; cmnm;;g1mni:b'hlliuls' of th'c s ivitth 23 will'wn' ll l qwupa jlmh ij; npygunqnhgxl thp switch 2: f r nl xtilznhgrry ()fl qlx'pffllion 1, thq cur 0.) intg; ffoll'?};;p osil;l n,,"gzb builh hhu paytmmw' lrfnt "S0"loii%"lllj llllhhwllzh lil li's hrlkl (my SUUIfl LILLhOJIGHllLlOTl imlhmhcd ih l llghfl I Lhntf'is n9; or; flasj tliq gmntwr cont inugs With lghn parts in frunningf'jjqokltibu u ins'rr'nfl'alljl' to hfjoj gl tho l i'nn 3: .lfl'do'vgn, {or 11$ alight Upward muyunun t 0f lhq g lglmnnd ol mon'ii s tli b finfilml prcssurcr is rrnlicycd the 3 the humllu will IHOVU Llmpinjl'l rluwm'vhrcll y resilient flnwillclifhl lidch runllhc sprir gs. 89

funzp fiinlp 'lU rlnwnwm'dly u. suilichi nlrrlis, upwnndly into ,Qhq runninghpqs tion.

45 s tripsw; ;0n hine :toprehfler lhhlacle$firible f l ln hgl ppitionjnfinuullxhfhgd L0 Somalia hand somewhzili whri theiiz qppbsit l hgthqp ng'i'gt its Inner end Llqwnwardly l fl; fg di tdenghgemrilkgvith' llhti ngq nsb'hhejl'o wprend wall hi the slqb'38 1nd respec'biveppnhnqtlsurfgib, and b31351 hrca k'llhg tbggle, whereupon the Rwltch in stm s amenergy in1Lhdblgd'eqtepding'lg "'2 ill sn p mqve' them away from tlglbohtahls l lli the U m 'a )f the particular gdvantziges 0f the case..of tihe' switc h 22; the enrgyiof thj struclsfnrefzjs" ahQve describedisthat ib'len'ds switch blades is particularly efl'gtive,,z 1s a;n itself a'd'mi'r'ably to "th employment 'of a auxiliary t0 tl1e.sp1-ing 39,;t0 hold flielog'gle n0-v0ltnge relapse zittnchment for the run fmade" and t mu se tl .e-swi tch;t 0 snap Sud; switch. I in v I 5 (lenly nnd ositively tonizrrcl thevifoll' po si-I {In the structure illustrated this attahv 7 lion immediately the; tggle is ffhinlcu, In lllfil'lll comprises a solenoid coilffiflrcarried the case of the switch QK-thmnrgj Of the upon 'the Outer fzice of the barrier H and switch blazlcs ispnrticularly effective, as zm ,1 toggle break lever 58 pivotally mounted in auxiliary lo the zidincent spring 39 to inrcu llGlKDQdlfllQ its length upon the bracket plate I30 the roller lll along lln: surface 43 of the cam 98 so lhnl um: iznrl 11s :74 stands in the path linlcll lhmwby to more ellectually and posiof muvmnnnl; of tlw heel of lhe toggle of ti el, mow: thu cum linlc (l0wnn ztrcllj up the running rawituh whiha lh: other 41ml, as proxinmtely to n poinh Where the, roller 55, pmjucts forwzmll illlu the path of passes m1 l0 llxe sleeper surface 42 of the cam movement of a trip lever 5?) which is con 5 link trolled by the snlenuirl wil, The trip lever an; contained.

is pivotally mounted upon the face of [he barrier, as M 57, and has-a 11061 338 at one side: of the pivot which stands beneath the, and of the, toggle bma'k lever. At the opposite side of the pivot l ho Ll'ip lover i elongated and is pivotall connooted with llw solenoid com 59. I; also carries a, weight 60 operating againstfthe upwa d pull of lllb com tgnding at all times to raise ,tlm 1160158 figoinst' the add 55 of the togglobrleak level so as to sningjhg and Si- 12f tho-t0 10 break lever downwardly to bmilr the g5. .lurr'onl. for the coil 52 is ,dm-ivfid om the fuse clips U, as at 61 anclGQ through wires 63 and 6-1 who]: lead upwardly nlong the face of tho lmwier to the opposite sides; of the coil.

13 this anfanfimont, the, xtqomonl', the. starting switch is mould ol' lfoiiiflrent is lhuntd Llirougli the wirin 68 am] 61; 1nd

goleziolil call so that the com; filluo ffthg coil is lifted leaving the and" 54; of liho l;bgg 1 hvalt lm'vr free to moi/ la, i1 )jwi l'l'lly to" drop}; unob t ucted movn u ont, ol tl zojx'gggl e zinto on position, and"thldshnnb aglici ih wjllfbgs m aintuinhd Lhmuglilhu running: swllzohqn uses 50 lon r as the. sggninin r switch is l l 0 d on, or on El llm current owing; throng l luaflmicejs for spl ne reason m'dllll l. urQclul; all". As noon 0}; Ll1 :;c\n'i 'gil' l; ia' rodnced ,0:

the' lmnl 58' to m the (and ar e' 'toggile be lost and lili wcighl. (l0 lid l1, rogigausilig bro-ll; mm: on as to duprosd lzlm'fdw "fi'lj 'nd immodifitcl bronk the log' lQ-d -ll o will: gas

at i:1n odgii. thereof, as at 65,1zunl a safety guard plain 6G is provided .lau pwvonbaccoss llmmgli this opening to an; of said pu rls or to the parts at. the rear: 0 he barrier.

. Tho guard plate 66 is preferably fixed .to

the portion 1 of tho front; wall of the casing and extends into the. casing so as to formu mrtical nolnpnrtmclll, 67 between itself and the adjacent side, wall of 121m nosing within which cumpzu'tmunl, Ll o' v arious lovers, do, A slot (38 is provided for entrance of tho heel portionof the trip lever 3G and n liul'lluzr slot G9 is provided in regis tel with the slul; 335 through which tho operating hundlo J13 projoclo 1\ pzu-l. 70 of the gllzud plain filsnnds in position behind Lln: ornclc which nPllCfllS I, the hinge of the door said part 70 tlwnzby provcntmg possilrilil ul lllStl'lwltlll of any foreign tool o implmmznl through Um bingo umnlz.

'lrlm maim- \\':\ll of the Sllll. (FR Show): 15 :1 simplu oxpmlivnl, for romining the lover 56 upon ifs piv t :11 llmngln ll dusirod, an extra pin or other auxiliary fastening moan-H an? be employed for this pnrpogse as shown. :1 order to prevent the msertmn of a forelgn tool or implement through the slot 356 9 a sliding guard lain 71 is provided just Inside of the portion 1 of the front; wall. This guaxd pla'hb is slidably mount ed in clips 72 fixed to the gua rd plate 66' and is foyme'c'l with a mass 73 which is just of: sulfimeut. size to accommodate the operating handle. As tho handle moves -up' and down tho, gumdplalae 'also m'dvs up and down and at all (21m rovidcs wrbions; as 74 and 75, which under the entir length of die slot; 35%!) except thej portion bocupid by bl: operatin ."hziiidId fiig'qd l2!) t o, dtif;lar "snri;aco of the (1001 2 15 a gnnpdplilto 7B:- Thij plabtyprojocts lat orally fronl tlio door 'in :1 position parallel wj lsh'im'd .olo'sc bsida l; a $1 835. Its lower and olibmids Sllfihifibiiil y-to tho Iowa)" and oflzh'e slot; whilel 'its upper-fond hm minnm; gho'r't of Hi -32 end of the slot. Itq flat frfaothus am in po'lxiliol lapping film g dhfof tl lizopmting lowr'at all tum-s excopb wlmri't'lm operating lover isin the full 911' position 'as pawn in Fig. 0. Any no fort t6, open (flip dob! whil tlw. opomfiing lmndloiain 'uth "than the lull 0!? maitiod will be. residue-l1 by eugxi'gemnnl; 0 the plate 76' ngainb-itlig opomting hmnlle, whilo anymlfo'rt to, mb'vo the-'fop'dmting-lnuullo dowhwnpdljli from u of? '[iositiolx'w'li'ile"tho door 'is open will be resisted by ongagmnmil.

of the olgiiratidahlindlo against th a nppor ml i of o 'la [bis (:11 (cor-quay not be 0 mined taxman (1 w'lmn-fiho lilz'tpdle is 01F- nn tho him: e may not be nioy od on mcept when the door is .olosod'l All of the din-rent carrying parts up'mi clm-fm as tho barrier am therefore neoessaril dead whenever the door is open but may "made dead or live al. will while the door is closed.

Whellover, for {my reason, it is lll'filled to remove 'Llio front wallof thp casing it is simply nccossai' to withdraw the screws 76 which hold film llange 4 fixed to tho adjacent side wall of film casing, and remm'o the bandlo grip 77 from' the handle lever, whomnpon the front wall may be bodily lifted out. The slide 71 may then lm removed or repaired if desired; The barrier H mny also then b removed b simply dimngnglng tho surnws 29. This will leave L110, switches and their manual operating clnnwnts, including Llu; operating handle, all in. assembled operative condition ideally exposed for inspec lion, adjnstmcnls, and repairs.

As many changes could bu made in this construction withoutdeparting from the hlinpil of the invention as clclinod in Um fol lowing claims, it is inlcndcd that all mnLLcr uonlninod in the above doqcriplllon or lmwn in the accompanying drawings, shall he interpreted as illustrative only and not in a limiting sense. y

By referring to the illustrations Figs. 11 and 12 it will be seen that a modified arrangement of the operatin handle audits associated parts may include mounting the pivot member of the handle to extend through-the adjacent side wall of the casing so as to carry a part ofthe operating handle within the casing and another part without the casing. This arrangement lends itself to a modified device for retaining the door closed during use of the switch. It also lends itselfireadily to the employment of locking means whereby the operating handle may be locked in the off position whenever desired, and also to the provision of means to insure return movement of the operating handle to the; running position.

A. detailed description of the structures Figs. 11 and 1 S as follows v The pivot member for the operatirig handle comprises 'a.-, ;short shaft.y 78..wh1ch is mounted to .rotate within 1a bearing sleeve 79fixed to andextending throu hi the side wallvof. the casing so asto give-t e shaft an ample bearing surface, v Theinner-end of-the shaft issquared, as at 80, and carries a'short arm 81 wliich in turn supports the pin 37. A washer 82 and spotter pin 83' serve to removably retain the arm 81 uponthe s uared portion of the shaft, and incidents y to retain the shaft againstfwithdrawal outwardly through the bearing sleeve. v

A handle lever 84 is fixed to the outer end of the shaft 78, as bvmeans of a cross pin 85 or the like. This handle lever may carry the hand grip 77 and is adapted to be swung up and down between oif starting and running positions for operating the pin 87 in the same manner as above described with regard to the structure of the other figures.

In order to prevent opening movement of the and door of the casing while the handle is in any but the oif position, the door is rovidecl with an extension member. 86 winch projects beyond the pivot, as 87, of the door. The handle lever is provided with an arcuate surface portion 88 which swings downwardly into the path of movement of the extension 86 whenever the handle is moved from the off position. While the handle is in the off position, however, the extension 86 is free to swing beneath the surface portion 88, as will be clearly apparent from inspection of Fig. 11.

By arranging the handle lever.8 1 exteriorly of the casing said handle lever may be readily weighted so as to give it a natural tendency to assume an off position. The weight is intended to be sufficient to serve,

as an auxiliary to the cam actionof the surfaces 4.2 and 43 of thelink L1, to move the handle from the starting to the -running POSltl0l'ly.-bl1t it is not suilicient; to move the ha-ndle'fromthe running to the oil osition, asduring this latter movement t e efi'ectiveness of thesurfaces 42 and 43 is lost.

In order to lock the handle lever in the off? position said lever is provided, with an eye 89 which stands adj acent to a bracket 90, also having an eye, as-91. Any form of locking element, such as a pad lock, may be inserted through the mating eyes 89. and 91 so as to handle lever. v

The door-locking lever 92, shown in Figs. 13 and 14, is pivotally mounted preferably upon the outen-surface of the door, as at 93. An operating knob, as 94, is-oonnected with the lever at the-pivot and-.servesms means by which the levermaybe manuall moved into unlocking ,position; whenever desired.

sition. The knob 94,-; may: incidentally-be used as ahandletjor fswingingthe jdoor opened or closed; nky. u'

The lever 92-. is; pivotally:

tively- -near to the free edge of the door? and base shorter-m. 95;-adapted itolfl e moved.

relatively long arm; 9B of the; lever projects.

into the pathzof movement of an extension piece 99 which is cgnnectedmith thehandle lever 84.. A retaining bracketJOO may a a g d ov r; aporti Of. he 1 0. 1g; arm; fi

the lever 'so as to maintain it at all times in proper operative position and so as to ,serve, if desired, as means for limiting the extent of movement of the lever.

By this construction it is apparent that whenever the handle lever 84 is depressed either into the starting or running positions, the lever 92 is necessarily swung so that the end of its short arm 95 engages within the slot 96 and positively retains the free edge of the door against swinging. The three arrows marked off, startin and running indicate the position to which the lower end of the part 99 moves in accordance with the three indicated conditions of the switch mechanism. It is thus seen that the end 95 of the lever will engage within the slot 96 at all times while the switch is either starting or running and is only free from the slot 96 when the lever is in the off position.

It is intended that the long arm 98 of the lever shall be of such weight as to cause the lever normally to stand in looking position as indicated by the dotted lines 101 as hythis means the door is maintained against prevent any movement of the swinging open whenever the'rswitch' is off exc'eptby aiqitiv manual retatien of the kri'b94ifl' 1 The extension stop 86 for;enga gi ng the areuatesiirfaceportien -88 0f *the ha-r dle lever '84; may, if desimxil, be dispensed. with where the lever-92' is em'p'loyeiL-or both may bereteined as auxiliaries t9 each other- The parts 86pmd 88 in a;nyevent;howeyer, serve the useful urpos "of positively preventing the for? movement of- =thJ handlefBk aifber the-door has been-opened. I 'W'h re the-2 lever (is employed; fof eol irs e it"becdmeennneemary'to employ the spring cumin-102 asshown 'in'Fig. 2. Heving thus described my invention-whet I- claim =as "new. and desire =to -sec ureby= L'etters -Pa tent "13A safety? switch'meebanism eom rising switch' h des within the casinga; l barrier the" casing interposed bebween saidf and having mev'able parts projecting in front of the barrier, and a guard"member' ctising intrpqs'efl between saiii 'swi tch' blade and said remdv'able =edirer e vitch o perating' me 'lrmisn a; ibnef 'side ottbewalsfing 'he'vin'g coiinec't ion iwithfl the "swite'h bla'des ar d= hav ip'g movablepartsfproj ectingin front'bf the barrier, and a guard member arranged with in the casing {carried :=by'.-seid removable cover, the removable" cover-inluding 'a door for giving entrance into the casing 'and-ihe guard member being arrangedt 'o pretect s'alid movabIe-p'artswhen the do'or o en:

3. Switeh'mecheiiism'zcomprising a-'=heusmg having an 'op'eningjherein, a deal-"for the Opening, a switch within the housing; 11'

detachable barrier withiri the housing inter' posedfbetween' theswitch and the deer; switch-operating niechiini'sm f within' the housin and operebl e -fr0m the exterio'r' thereo *andaneleetrically-aciiuated' means mounted on,findweniovablgwithithoe barrier and eh'gagiiigthe switch? m'bhiiriim 1 for actuating theiswit h'anechapiemm ier pre determined imire'rit? eonditie'fis; 1

fuse'de'vices andmeuntedfefi ,iind removable" i the =preser ce of two witnesses; 

